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76650380 = 22525115269
BaseRepresentation
bin1001001000110…
…01011110001100
312100020020112222
410210121132030
5124110303010
611334514512
71620342332
oct444313614
9170206488
1076650380
113a2a3624
1221805a38
1312b59871
14a273b52
156ae1355
hex491978c

76650380 has 24 divisors (see below), whose sum is σ = 161617680. Its totient is φ = 30536000.

The previous prime is 76650377. The next prime is 76650397. The reversal of 76650380 is 8305667.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 76650380.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2615 + ... + 12654.

It is an arithmetic number, because the mean of its divisors is an integer number (6734070).

Almost surely, 276650380 is an apocalyptic number.

It is an amenable number.

76650380 is an abundant number, since it is smaller than the sum of its proper divisors (84967300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76650380 is a wasteful number, since it uses less digits than its factorization.

76650380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15529 (or 15527 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 76650380 is about 8755.0202741056. The cubic root of 76650380 is about 424.7872152822.

The spelling of 76650380 in words is "seventy-six million, six hundred fifty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 251 502 1004 1255 2510 5020 15269 30538 61076 76345 152690 305380 3832519 7665038 15330076 19162595 38325190 76650380